...devices that give off a reverberating sound when struck. Buzzers are electronic signaling devices that make a buzzing sound (a low continuous humming like that of a bee). Speakers are designed to reproduce attention penetrating tones and voice commands...
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...that of an LED or LCD, or a computer or video monitor. These annunciators and graphic display systems also include mosaic graphic displays, and control graphic displays. Audio alarm annunciators include air horns, sirens, bells, buzzers, speakers...
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Hz, and include audible buzzers that sound when test conditions fail. To protect testers from high voltage or current, current leakage testers may include a rapid cutoff. Front panel lockouts prevent tampering with instruments during testing...
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...or other instruments. Build-in calibration allows operators to calibrate test instruments without removing them from the test location. Warning indicator lights indicate pass/fail conditions and often work in conjunction with audible buzzers or alarms...
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Pest control products and equipment are used to repel, remove or eradicate unwanted animals and insects. They use mechanical, electrical, chemical, and ultrasonic methods and are designed typically to combat specific types of vermin.
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Speakers produce and transmit sounds carried by electrical or radio signals. This product category is primarily for industrial and OEM speakers rather than those for home use.
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Product News

Digi-Key CorporationCUI Buzzers and Audio Alerts
CUI ’s comprehensive line of magnetic and piezo buzzers are used across many major industries as a means for audible identification or alert. From extremely compact 5 mm SMT buzzers to larger, high decibel and waterproof models, this product family is well suited to address the needs of the most challenging audio alert applications. Applications: Home appliances. Automotive. Medical. Security. Industrial. Office automation
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Rieker, Inc.Digital Inclinometer, RDI Series LCD display
be configured for either normally open or normally closed operation. The outputs can be used to drive an external buzzer, horn, lamp, solenoid, or relay allowing for audible and/or visual warnings and possible equipment shut down control. This also allows remote operation of the box from the warning lamps and buzzers. Each switch output can be delayed from 0 to 16 seconds to eliminate false triggering. These outputs are available in both display and nondisplay models. In the case of a display model...
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UTC Fire & SecurityAudible Signals
Edwards provides a wide selection of general purpose vibrating and single stroke bells and buzzers that sound a unique tone that demands immediate attention. Edwards provides the broadest line of horns in the industry. And Sirens - Edwards makes motor driven sirens for all your signaling needs! Edwards also provides a wide selection of High db Klaxon and Air Operated Horn signals for industrial use. If you need products for Indoor, Outdoor, Marine, NEMA 4X or Division 1 or 2 hazardous locations...
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Arjay Engineering Ltd.EC-Gold Dual Gas Detector
The EC-Gold Dual is ideal for any size facility where one or multiple gases need to be monitored. More than 30 years of gas detection experience has contributed to this highly functional detector. • one or two onboard sensors (ie. CO and NO2). • two optional remote sensors (ie. toxic, combustible, or any analog device). • basic blind unit with common relays, RS-485 and analog output or Full-Feature model with added LCD display, buzzer and keypad. The EC-Gold Dual offers...
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ACME Engineering Products, Inc.UNISET Gas Monitor - Building Ventilation Control
supports an alarm buzzer with a kill switch. A 10-bar graph displays the perceived gas levels and LED's indicate the status of the relay outputs. Optionally, the UNISET can also output an analog signal over the range of the sensor. The UNISET is ideal for small scale applications requiring only a single gas sensor and simple ventilation system. Learn more about ACME's Uniset Stand-Alone Gas Monitor.
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Wood's Powr-Grip Co., Inc.Manual Rotator / Tilter 500 (DC) ? Premium Edition
This lifter's Dual Vacuum System (DVS) features two completely independent vacuum circuits, allowing the vacuum lifter to maintain the vacuum level for one circuit even if an unexpected vacuum loss occurs in the other one. DVS is designed to reduce the risk of falling loads, which could otherwise result from material breakage or accidents that compromise one area of the vacuum system. In addition, DVS features audible and visible alarms that warn the operator whenever the vacuum level is not...
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Wood's Powr-Grip Co., Inc.Premium MRT4 & MRTA6 Vacuum Lifters
warning buzzer alerts the operator in the event of power loss, helping to prevent damage to the load and minimizing the possibility of injury to the operator or others in the area. A low vacuum warning buzzer alerts the operator when vacuum is not sufficient to lift the load, enhancing operator safety and helping to avoid costly load damage. Dual vacuum gauges allow the operator to visually monitor both vacuum circuit levels simultaneously. A new charger is equipped with indicator lights...
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Conduct Research

A piezo buzzer generates sound because of the piezoelectric effect from the piezoelectric ceramic which drives the metallic diaphragm to vibrate. A magnetic buzzer is based on the electromagnetic principle, the metal diaphragm is pulled when input the power, and spring back without power....

There are many different kinds of buzzer to choose, first we need to know a few parameters, such as voltage, current, drive method, dimension, mounting type, and the most important thing is how much SPL and frequency we want....

These days, it seems that we are constantly being alerted with everything from beeps to buzzers. Personal Computers, virtually all types of home appliances, cars, farm implements, golf carts, medical. equipment, instrumentation, and smoke and carbon monoxide detectors. These all contain audible...

...to understand the makeup of the audio products and how certain frequencies (i.e, sounds) signify specific conditions. Sound from medical instruments is typically emitted from either a transducer or a buzzer. Transducers and buzzers each offer distinct advantages in certain medical instruments...

From smoke detectors to automobiles,. audible alarms (also known to be called. buzzers) have become a part of our. everyday life. Some of the uses of these. alarms are innocuous such as in a. microwave oven. However, in some. applications such as in a smoke detector. or medical equipment...